From: Andrew Morton <akpm@linux-foundation.org>
To: Greg Thelen <gthelen@google.com>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
containers@lists.osdl.org, Andrea Righi <arighi@develer.com>,
Balbir Singh <balbir@linux.vnet.ibm.com>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>,
Minchan Kim <minchan.kim@gmail.com>,
Ciju Rajan K <ciju@linux.vnet.ibm.com>,
David Rientjes <rientjes@google.com>,
Wu Fengguang <fengguang.wu@intel.com>
Subject: Re: [PATCH v4 02/11] memcg: document cgroup dirty memory interfaces
Date: Fri, 29 Oct 2010 13:19:52 -0700 [thread overview]
Message-ID: <20101029131952.1191023d.akpm@linux-foundation.org> (raw)
In-Reply-To: <1288336154-23256-3-git-send-email-gthelen@google.com>
On Fri, 29 Oct 2010 00:09:05 -0700
Greg Thelen <gthelen@google.com> wrote:
> Document cgroup dirty memory interfaces and statistics.
>
>
> ...
>
> +When use_hierarchy=0, each cgroup has dirty memory usage and limits.
> +System-wide dirty limits are also consulted. Dirty memory consumption is
> +checked against both system-wide and per-cgroup dirty limits.
> +
> +The current implementation does enforce per-cgroup dirty limits when
"does not", I trust.
> +use_hierarchy=1. System-wide dirty limits are used for processes in such
> +cgroups. Attempts to read memory.dirty_* files return the system-wide values.
> +Writes to the memory.dirty_* files return error. An enhanced implementation is
> +needed to check the chain of parents to ensure that no dirty limit is exceeded.
> +
> 6. Hierarchy support
>
> The memory controller supports a deep hierarchy and hierarchical accounting.
> --
> 1.7.3.1
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next prev parent reply other threads:[~2010-10-29 20:27 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-29 7:09 [PATCH v4 00/11] memcg: per cgroup dirty page accounting Greg Thelen
2010-10-29 7:09 ` [PATCH v4 01/11] memcg: add page_cgroup flags for dirty page tracking Greg Thelen
2010-10-29 7:09 ` [PATCH v4 02/11] memcg: document cgroup dirty memory interfaces Greg Thelen
2010-10-29 11:03 ` Wu Fengguang
2010-10-29 21:35 ` Greg Thelen
2010-10-30 3:02 ` Wu Fengguang
2010-10-29 20:19 ` Andrew Morton [this message]
2010-10-29 21:37 ` Greg Thelen
2010-10-29 7:09 ` [PATCH v4 03/11] memcg: create extensible page stat update routines Greg Thelen
2010-10-31 14:48 ` Ciju Rajan K
2010-10-31 20:11 ` Greg Thelen
2010-11-01 20:16 ` Ciju Rajan K
2010-11-02 19:35 ` Ciju Rajan K
2010-10-29 7:09 ` [PATCH v4 04/11] memcg: add lock to synchronize page accounting and migration Greg Thelen
2010-10-29 7:09 ` [PATCH v4 05/11] writeback: create dirty_info structure Greg Thelen
2010-10-29 7:50 ` KAMEZAWA Hiroyuki
2010-11-18 0:49 ` Andrew Morton
2010-11-18 0:50 ` Andrew Morton
2010-11-18 2:02 ` Greg Thelen
2010-10-29 7:09 ` [PATCH v4 06/11] memcg: add dirty page accounting infrastructure Greg Thelen
2010-10-29 11:13 ` Wu Fengguang
2010-10-29 11:17 ` KAMEZAWA Hiroyuki
2010-10-29 7:09 ` [PATCH v4 07/11] memcg: add kernel calls for memcg dirty page stats Greg Thelen
2010-10-29 7:09 ` [PATCH v4 08/11] memcg: add dirty limits to mem_cgroup Greg Thelen
2010-10-29 7:41 ` KAMEZAWA Hiroyuki
2010-10-29 16:00 ` Greg Thelen
2010-10-29 7:09 ` [PATCH v4 09/11] memcg: CPU hotplug lockdep warning fix Greg Thelen
2010-10-29 20:19 ` Andrew Morton
2010-10-29 7:09 ` [PATCH v4 10/11] memcg: add cgroupfs interface to memcg dirty limits Greg Thelen
2010-10-29 7:43 ` KAMEZAWA Hiroyuki
2010-10-29 7:09 ` [PATCH v4 11/11] memcg: check memcg dirty limits in page writeback Greg Thelen
2010-10-29 7:48 ` KAMEZAWA Hiroyuki
2010-10-29 16:06 ` Greg Thelen
2010-10-31 20:03 ` Wu Fengguang
2010-10-29 20:19 ` [PATCH v4 00/11] memcg: per cgroup dirty page accounting Andrew Morton
2010-10-30 21:46 ` Greg Thelen
2010-11-02 19:33 ` Ciju Rajan K
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